Improvement



llNrrn STATES! e.- e. DIBBLaoF FARMInc'roN, town.

imeaoveiesnr- IN STAVEMACHINEs i Specification forming part of Letters Patent Nol @(L, dated February 28,1865.

fb all w'wnt it may concern: t Be it known that-1, C. G. DIBBLE, of Farini l ington, county otfVan' Buren, State of lowa,

have invented a new. and Improved Machine' for Making Staves f'onBarrels, Sac. 5 and lI do hereby declare thatv the following isa "full,

clear, and exact description thercoi',-referencel being had to vthe accompanying draw-ings, making apart ot' this specilicatio'n, in-whieh-- Figure l is a side elevation of theimproved machine with thefront railof thei'rame broken away. 'Figl 2 is a top view with-a portion of the carriage broken away to show the gearing beneath il'. Fig. 3 is an elevaticn of one end ot' the machine.l Fig. e is an elevation-of the opposite end ottheginaehine. ,Figi 5A is a bottoin view ot the machine as seen by making a horizontal section through the uprights of the frame. j

Similar letters of' reference indicate corresponding parts in the several figures.'

My invention relates to certain improvements on that class of stave making machinery' wherein a eurv'ed reciprocating saw is emlployed for sawing the stavesfroin the blocks in conjunction with areciprocating carriage upon which said blocks .are secured, as vwill be hereinafter described.

The main object of my invention is to feed the blocks' up to the work automatically, so

that` the staves will all he cnt oa uniform thickness throughout without the necessity of stopping the machine 4to adj ust'the blo'ck for each stave that is eut.

Toenahle others skilled in the artto-lnake andfuse my invention, I will describe its con structioirand' operation. 4' 'In tlieaecompanyin g drawings, A represents a rectangular traine, which is adapted for containing and supporting -the mechanism for holding the blocks from which the staves are' cut, feeding these blocks up to the saw, saw'- ing' off the staves, and giving a reciprocating movement to said blocks. Upon the upper transverse rails of' the frame A, and extending longitudinally from` one end'v to the other of this trame, is a curved track or rail, A', upon which areciproca-ti'ng carriage moves. The

curvature of this rail -is-'made to 'conform to the 'bi'lge of the barrels which thejstaves out .by

theI machine .are intended to make. Theearriage Brissupported'upon the rail A.and'one i of thellongitudinalrails o fvfraxrie A bymeaps-. -of three wheels, c a e', two of which, a a, .are l 1grooved to t the narrowcu'rved rail, butthe other'is fiat ori itsperphery.. {[he journalings for a longitudinal pinion-shaft, B ,"which carries hevel-pinions b b on it, that engage with pinions b b on the vertical' shafts of tivo feed-rollers, c c, 'that are arranged -jnear'the' inner curved edge Aofcarriagev B in`headhlocks'2 B?. The feed-.rollers'are armed on their surfaces withspurs, which take into the blocks placed `between th-ein ,and feed these 'blocks toward the sawadstanceequal to the .thickness `l0'1. the stares tobe cnt othas will be hereinafter described;

{Pheinner curved' edge of the carriage is lfitted closelv to a' stationary table, G, and

4this table -is` 'in the saine horizontal plane vas the carriage B, so that the stave is supported upon the curved edge of said table during the operation of' sawing it from the block.-

At a suitable distance from lthe rear end of the table G the saw is 'arranged for sawing oif the 4sta-ves. VThis saw Vis 'attached 4at'its ends to curved arms d d, which are secured toa longitudinal shaft, d,that 'has its end bearings in two blocks, d2 e2. The saw D i-s curved,

so as to form the are of a circle which is concentric to the -axis ot" the rock-shaft d', and thus the lateral curvature isgiveu to the staves prod need in my machine. fo theloxver saw-arm, d', a'pitman rod, dgconnects this arm to a balance 'cranlewheel,el,I which is keyed on theend of the .main 'drivingshaft E, and

as this shaft rotates/a reciprocating motion is given to the saw D. At the' banket' this saw, and secured to thetop of the table C, a wedgeshaped plate, j, is arranged,- so as to enterthe kertmade in the block by the saw in the 'act of severing a stave from it and slightly open the kerf, so' that the saw will Work freely,

Another object of this wedge is to support the stave after it has been cut oft from the block until another stave moves along and pushes the former off .the table. This Wedge also being sawed and prevents it frein crowding Yholdsthe -block in the proper position while .on the sawduring this operation.. fegt a point beneath' the carriage B, betweenvthe saw and forwardend of the frame A, Iemploy a wormscrew, e, which iskeyed on the end of a drivt main shaft E. this worin screw is supported by lalaterallywhichis-lleld down in lFig. 2,.

iugsliaft, E', that. receives its lmotion from the The end of shaft Eearrying vibrating plate, i),whieh is pivoted at i to a transverse rail ot' frame A, as'shown clearly in Fige. 4The lower endoi the bearing-plate g is hooked, and the hook catches under said rail, t0 prevent-this plate fri'm being thrust too far backward.. One end ofa tl-shaped spring,rg", is secured tothe edge of bearingplate, g, and the other encLoi' th.'s springI is free to movewhen acted upon by a settingplate,

92,' which is secured to the bottom of the ear-V riage, asshown in Figs. 1, 3, and 4. That cud of the' spring g which is secured to the plate g projects a short distance therefrom for the purpose of being caught vby a notched springlate-Inh, and' held in such a position thatthe' worm wheel or screw e will engage with the teeth of a curved rack, G. Wher. it is desired to disengage the worm-wheel frein its lrack, a hook, j, is brought into action and lit'ts the latch h, thus allowing a spring, 7c, to thrust the bearin g-p1ate g back..

` The rack G is curved in conformity with the rail A', and this rack is secured tothe bottom ot the carriage B in such relation'to the worm.

screw e that when this screw is throw'u'orward and held in gear withthe rack the carriage will be thus'A moved toward the saw for severing. a stave from the block'. This carriage .may then be moved back again by hander by means ofa weight and cord, or"in any .other suitable manner. I

When'tlie carriage is moved back after .a stone has been sawcd from the block, I desire to move this block forward vthe thickness of another stave by an automatic cortrivance,

which li will now describe.

turns Vthis shaft a sufticient distance to move the stave-block a distance equal to the thicki ess of a stave. The perforations in the wheel 133 are 'errang d conceut'really toits axis and at regular distances apart. It" it is desired to diminish the thiknessc o f the staves,the perforations must be made vnearer together and the plate H adjusted. by the set-screw m', so that the,l movement of this plate will .be diminished in a proper-ratio with respect to the position ot 4the perforat'ions inthe wheel B3.

Having now described the several parts of my improved machine, I will new briefly 5de-l scribe the operation of Vthe same.

A block of a suitable length and thickness is placed upon the carriage Band pushed up between the spurred ieedrollers ce, so that these rollers will after-ward carry the block toA the saw. The saw is now' setin motion and motion communicated to the shaft E', and the carriage brought back toa -pesition for starting, in'which position'the plate g2 willact upon the spring g and engage the wormwheel c withthe rack Gr. The carriage is new -moved forward and a stave sawed from th'e block, after which 'the carriage is moved back again either by hand' or otherwise. ',As the carriage reaches the terminus of its forward stroke the hookj lifts the springcatch h and allows the spring 7c to thurst' plate g back, and thus disengage the worm-wheel from the raclr G. 0n returning the carriage to'commenee another stroke forward, the pointed end of the projection p forces the slide li bacluand causes the. spur s to move the .blockadistanee equal to the thickness ot' a stave. The carriage thenstarts forward, and another stave is sawed from the block. The spurs or teeth ou the fcedrollcrs c c .should hemade w-ith their upper surfaces.-

parallel tothe surface of the carriage B, and

' the bevel necessary to point these teeth 4should he made on theirsides and bottom. ,This will prevent the blocks from being lifted up or forced downward, so as to' drag upon the carriage.

It will be seen from the above description-- that I am enabled to saw straight saves as well as, those which are curved lengthwiseby modifying those partsof the machine which adapt 'it for cutting curved staves, such as the curved rail, curved carriage, and curved rack.

' By making these partsstraight and giving a rectilinear motion tothe cairiage-the operation of those parte which constitute my invention, will be substantially as I have above described. y g

Having thus described my invention, what Lelainras new, and desire to secure by Letters latent, is-

1. Gi-vin g an intermittent feed motion -to rollers c c i'or feeding the block up -to the lwork' by means of a spur, s, actuating a gagewheel, B3, on the puionsliai't B', substantially as described.

2, The combination of a pointed projection,

p,on carriage B with the spurred slide'zhp substantially as described.

3. The adjusting set-screw m', or. its equivalent, in combination with the spurred slide H, substantially as described.

4. The combination of the spurred feed-v rollers c c, applied' to head-block B2 B2 on carringe B, with the bevel-wheels b b b b, shaft B',

and gagewheel B3, operating substantially as described. y

Witnesses: U. G. BUBBLE.

GEORGE Serienr/in, S.C. SCHRAMM. 

